diff options
Diffstat (limited to 'src/Specific/montgomery64_2e384m317/fesub.c')
-rw-r--r-- | src/Specific/montgomery64_2e384m317/fesub.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/Specific/montgomery64_2e384m317/fesub.c b/src/Specific/montgomery64_2e384m317/fesub.c new file mode 100644 index 000000000..bc84edeb2 --- /dev/null +++ b/src/Specific/montgomery64_2e384m317/fesub.c @@ -0,0 +1,46 @@ +#include <stdint.h> +#include <stdbool.h> +#include <x86intrin.h> +#include "liblow.h" + +#include "fesub.h" + +typedef unsigned int uint128_t __attribute__((mode(TI))); + +#if (defined(__GNUC__) || defined(__GNUG__)) && !(defined(__clang__)||defined(__INTEL_COMPILER)) +// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81294 +#define _subborrow_u32 __builtin_ia32_sbb_u32 +#define _subborrow_u64 __builtin_ia32_sbb_u64 +#endif + +#undef force_inline +#define force_inline __attribute__((always_inline)) + +void force_inline fesub(uint64_t* out, uint64_t x12, uint64_t x13, uint64_t x11, uint64_t x9, uint64_t x7, uint64_t x5, uint64_t x22, uint64_t x23, uint64_t x21, uint64_t x19, uint64_t x17, uint64_t x15) +{ uint64_t x25; uint8_t x26 = _subborrow_u64(0x0, x5, x15, &x25); +{ uint64_t x28; uint8_t x29 = _subborrow_u64(x26, x7, x17, &x28); +{ uint64_t x31; uint8_t x32 = _subborrow_u64(x29, x9, x19, &x31); +{ uint64_t x34; uint8_t x35 = _subborrow_u64(x32, x11, x21, &x34); +{ uint64_t x37; uint8_t x38 = _subborrow_u64(x35, x13, x23, &x37); +{ uint64_t x40; uint8_t x41 = _subborrow_u64(x38, x12, x22, &x40); +{ uint64_t x42 = (uint64_t)cmovznz(x41, 0x0, 0xffffffffffffffffL); +{ uint64_t x43 = (x42 & 0xfffffffffffffec3L); +{ uint64_t x45; uint8_t x46 = _addcarryx_u64(0x0, x25, x43, &x45); +{ uint64_t x47 = (x42 & 0xffffffffffffffffL); +{ uint64_t x49; uint8_t x50 = _addcarryx_u64(x46, x28, x47, &x49); +{ uint64_t x51 = (x42 & 0xffffffffffffffffL); +{ uint64_t x53; uint8_t x54 = _addcarryx_u64(x50, x31, x51, &x53); +{ uint64_t x55 = (x42 & 0xffffffffffffffffL); +{ uint64_t x57; uint8_t x58 = _addcarryx_u64(x54, x34, x55, &x57); +{ uint64_t x59 = (x42 & 0xffffffffffffffffL); +{ uint64_t x61; uint8_t x62 = _addcarryx_u64(x58, x37, x59, &x61); +{ uint64_t x63 = (x42 & 0xffffffffffffffffL); +{ uint64_t x65; uint8_t _ = _addcarryx_u64(x62, x40, x63, &x65); +out[0] = x65; +out[1] = x61; +out[2] = x57; +out[3] = x53; +out[4] = x49; +out[5] = x45; +}}}}}}}}}}}}}}}}}}} +// caller: uint64_t out[6]; |